I was checking my original $32b BIN dump (ABUT8562) from an 87-305 A/T Cal. Because I have changed to the $6e APYS3509
Looking to the “Single Fire FI Size @ 40 psig” at the ABUT it gives the size of 20.82Lbs/Hr.
Looking at the APYS and I see the size of 19.48Lbs/Hr. also the ANZA is giving this size.

I though that every TPI 305 got the size of 19.48Lbs/Hr.
Is this some special set-up?
Regards,
Cobra289

 

My understanding is that the early TPI setups ran a larger injector at a lower fuel pressure. I don't recall what years or what models (Y/F). This cal may be for one that did just this.

RBob.

 

Believe 85 TPI wa sthe only with FP at 35. In 86 factpry went to 43 line off and actually had a bulletin (maybe recall) on earlier cars for a prom and a new regulator
later
JEremy

 

OK,
We are talking here about a Camaro late 87 from California.
Is the 32B ECU correct?
“Single Fire FI Size @ 40 psig” the 40 psig is the fuel rail pressure and not the injector test pressure (43.5113 = 3 brag)?
Therefore, the 19.48 lbs/hr. at 40 psig is equivalent to 20.3 lbs/hr. at 43.5 psig.
That means that for an 89 F body you need to buy a 21 lbs/hr (Advertised) and if you use a different value, let’s say 24lbs/hr you need to adjust these value in the bin file.
Regards,
Cobra289